981849904 has 20 divisors (see below), whose sum is σ = 2174096464. Its totient is φ = 420792768.

The previous prime is 981849901. The next prime is 981849923. The reversal of 981849904 is 409948189.

It is a happy number.

981849904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (981849901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4383147 + ... + 4383370.

Almost surely, 2^981849904 is an apocalyptic number.

It is an amenable number.

981849904 is an abundant number, since it is smaller than the sum of its proper divisors (1192246560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981849904 is a wasteful number, since it uses less digits than its factorization.

981849904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8766532 (or 8766526 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 981849904 is about 31334.4842625501. The cubic root of 981849904 is about 993.9129915055.

The spelling of 981849904 in words is "nine hundred eighty-one million, eight hundred forty-nine thousand, nine hundred four".